CN108803725B - Temperature control method and electronic equipment - Google Patents
Temperature control method and electronic equipment Download PDFInfo
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- CN108803725B CN108803725B CN201810700271.6A CN201810700271A CN108803725B CN 108803725 B CN108803725 B CN 108803725B CN 201810700271 A CN201810700271 A CN 201810700271A CN 108803725 B CN108803725 B CN 108803725B
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- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
- G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor
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Abstract
The embodiment of the application discloses a temperature control method and electronic equipment, wherein the temperature control method is applied to the electronic equipment and comprises the following steps: if the environmental temperature of the electronic equipment meets the preset condition, the heating device is continuously controlled to work, so that the target device is still in a heating state after being in a working state, and the target device can work in a preset temperature range; the heating device is arranged corresponding to the target device, and the heating device can improve the working temperature of the target device in a working state. According to the temperature control method and the electronic equipment, the heating device is continuously controlled to work, so that the target device is still in the heating state after being in the working state, the target device can work within the preset temperature range, and the working effect of the target device is good.
Description
Technical Field
The present disclosure relates to the field of electronic technologies, and in particular, to a temperature control method and an electronic device.
Background
In many industries, electronic equipment such as notebook computers and the like needs to work under extremely severe environments, for example, the electronic equipment may need to work under low temperature environments, but some devices in the current electronic equipment cannot realize normal work under low temperature environments.
Disclosure of Invention
An object of the embodiments of the present application is to provide a temperature control method and an electronic device, which can enable the electronic device to operate at an appropriate operating temperature.
In order to solve the technical problem, the embodiment of the application adopts the following technical scheme: a temperature control method is applied to electronic equipment and comprises the following steps:
if the environmental temperature of the electronic equipment meets the preset condition, the heating device is continuously controlled to work, so that the target device is still in a heating state after being in a working state, and the target device can work in a preset temperature range;
the heating device is arranged corresponding to the target device, and the heating device can improve the working temperature of the target device in a working state.
Preferably, before the operation of the continuous control heating device, the method further comprises:
collecting environmental temperature data;
and if the environmental temperature data meets the preset condition, controlling the heating device to work before the target device is in a working state, so that the target device can be heated before working.
Preferably, the continuously controlled heating device operation comprises:
operating the heating device at a first time with a first parameter;
operating the heating device at a second time with a second parameter;
wherein, the parameters are different, and the temperature generated by the heating device is different.
Preferably, the heating device, after operating at the first parameter, comprises:
detecting power consumption of the electronic device;
and at the second moment, switching the heating device to work with the second parameter according to the power consumption of the electronic equipment and the rated power of the electronic equipment.
Preferably, the power consumption of the electronic device comprises system power consumption and heating power, the first parameter comprises first heating power, and the second parameter comprises second heating power;
at the first moment, the electronic equipment generates first system power consumption;
generating a second system power consumption by the electronic device at the second moment;
the first system power consumption is larger than the second system power consumption, and the first heating power is larger than the second heating power;
the first system power consumption is less than the second system power consumption, and the first heating power is less than the second heating power;
wherein at the first time, the first heating power is adjusted to a difference between the rated power and the first system power consumption; and at the second moment, adjusting the second heating power to be the difference value between the rated power and the second system power consumption.
Preferably, the temperature generated by the heating device is different, and the temperature generation method comprises the following steps:
the temperature generated by the heating device is made different by adjusting the voltage or current.
Preferably, if the ambient temperature of the electronic equipment meets a preset condition, the heating device is continuously controlled to work; make the target device in operating condition after, still be in the heating state to can work at preset temperature range, include:
when the environment temperature is lower than the active temperature of the material of the target device, the heating device is continuously controlled to heat the target device so as to enable the target device to work at the active temperature.
Preferably, the method further comprises:
and controlling the heating device to stop working in response to the power consumption of the electronic equipment being larger than the rated power of the electronic equipment.
The embodiment of the application also discloses an electronic device, which comprises:
a target device;
a heating device disposed corresponding to the target device and configured to improve an operating temperature of the target device in an operating state;
a temperature detection device configured to detect an ambient temperature in which the electronic apparatus is located;
a control device configured to continuously control the operation of the heating device if the ambient temperature satisfies a predetermined condition; and after the target device is in the working state, the target device is still in the heating state, so that the target device can work in a preset temperature range.
Preferably, the control device is configured to: operating the heating device at a first time with a first parameter; operating the heating device at a second time with a second parameter; wherein, the parameters are different, and the temperatures generated by the heating devices are different;
wherein the electronic device further comprises:
a power consumption detecting device configured to detect power consumption of the electronic apparatus;
the control device is configured to switch the heating device to operate at the second parameter at the second time based on the power consumption of the electronic device and the rated power of the electronic device.
The beneficial effects of the embodiment of the application are that: by continuously controlling the heating device to work, the target device is still in a heating state after being in a working state, so that the target device can work within a preset temperature range, and the working effect of the target device is good.
Drawings
FIG. 1 shows a schematic flow diagram of a temperature control method of an embodiment of the present application;
fig. 2 is a block diagram showing a configuration of an electronic device according to a first embodiment of the present application;
fig. 3 is a block diagram showing an electronic apparatus according to a second embodiment of the present application;
fig. 4 shows a circuit diagram of an electronic device of a third embodiment of the present application;
FIG. 5 is a circuit configuration diagram showing a step-down DC/DC, a heating film and a liquid crystal panel temperature sensor of an electronic device according to an embodiment of the present application;
fig. 6 is a circuit configuration diagram showing a boosting type DC/DC, a heating film, and a liquid crystal panel temperature sensor of the electronic apparatus according to the embodiment of the present application;
fig. 7 is a circuit configuration diagram showing a voltage step-up/step-down DC/DC, a heating film, and a liquid crystal panel temperature sensor of an electronic device according to an embodiment of the present application.
Detailed Description
Various aspects and features of the present application are described herein with reference to the drawings.
It will be understood that various modifications may be made to the embodiments of the present application. Accordingly, the foregoing description should not be construed as limiting, but merely as exemplifications of embodiments. Those skilled in the art will envision other modifications within the scope and spirit of the application.
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and, together with a general description of the application given above and the detailed description of the embodiments given below, serve to explain the principles of the application.
These and other characteristics of the present application will become apparent from the following description of preferred forms of embodiment, given as non-limiting examples, with reference to the attached drawings.
It should also be understood that, although the present application has been described with reference to some specific examples, a person of skill in the art shall certainly be able to achieve many other equivalent forms of application, having the characteristics as set forth in the claims and hence all coming within the field of protection defined thereby.
The above and other aspects, features and advantages of the present application will become more apparent in view of the following detailed description when taken in conjunction with the accompanying drawings.
Specific embodiments of the present application are described hereinafter with reference to the accompanying drawings; however, it is to be understood that the disclosed embodiments are merely examples of the application, which can be embodied in various forms. Well-known and/or repeated functions and constructions are not described in detail to avoid obscuring the application of unnecessary or unnecessary detail. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present application in virtually any appropriately detailed structure.
The specification may use the phrases "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," which may each refer to one or more of the same or different embodiments in accordance with the application.
As shown in fig. 1, an embodiment of the present application discloses a temperature control method, which is applied to an electronic device, where the electronic device may be a notebook computer, a desktop computer, or the like.
The temperature control method comprises the following steps:
if the environmental temperature of the electronic equipment meets the preset condition, the heating device is continuously controlled to work, so that the target device is still in a heating state after being in a working state, and the target device can work in a preset temperature range;
the heating device is arranged corresponding to the target device, and the heating device can improve the working temperature of the target device in a working state.
The target device may be a storage device, a display device, a processing device, or the like. When the environmental temperature of the electronic equipment meets the preset condition, the target device cannot work within the preset temperature range, namely the target device cannot work normally, the target device can work within the preset temperature range by continuously controlling the heating device to work, for example, the storage equipment can work within the preset temperature range of high-speed storage data, the display equipment can work within the preset temperature range with good display effect, and the processing equipment can work within the preset temperature range of high-speed processing data.
The material for manufacturing the target device includes a specific material having a specific activation temperature, and when the ambient temperature is not the same as the activation temperature of the specific material included in the material for manufacturing the target device, the target device does not work well. If the ambient temperature is lower than the active temperature of the specific material, the target device needs to be heated to enable the specific material to work at the active temperature, and if the ambient temperature is higher than the active temperature of the specific material, the target device needs to be cooled to enable the specific material to work at the active temperature. In the following embodiments, the temperature rise of the target device is described as an example. In some embodiments, when the ambient temperature is lower than the active temperature of the specific material of the target device, the heating device is continuously controlled to heat the target device so that the specific material of the target device operates at the active temperature (when described later, the target device operates at the active temperature is used instead). For example, the temperature is higher than minus 40 ℃, the activity of the liquid crystal material of the liquid crystal display screen can be ensured, therefore, when the environmental temperature is lower than minus 40 ℃, the display effect of the liquid crystal display screen is not good, the liquid crystal display screen is heated by continuously controlling the heating device to work at the active temperature, and the display effect of the liquid crystal display screen is better.
The heating device is arranged corresponding to the target device, and when the heating device works, the working temperature of the target device can be improved. When the heating device improves the working temperature of the target device, the target device can be directly heated, or the working temperature of the target device can be indirectly improved. For example, the heating device is a heating film, the target device is a liquid crystal display, the heating film is attached to the inner side of the liquid crystal display, when the heating film generates heat through resistance to generate heat, the heating film can directly improve the temperature of the liquid crystal display, and the liquid crystal display can improve the working temperature of the liquid crystal display by absorbing the heat conducted by the heating film. For example, the heating device is an electromagnetic heating heater, the target device is a liquid crystal display screen, the heater is arranged near the liquid crystal display screen, after the heater starts to work, heat can be conducted to the liquid crystal display screen through air around the heater, and the liquid crystal display screen absorbs the heat conducted by the air through indirectly improving the temperature of the liquid crystal display screen, so that the working temperature of the liquid crystal display screen can be improved. Among them, the heating film or the heater as a heating device dedicated to heating can achieve the object of improving the operating temperature of the target device. In addition, devices that can function as a heater during operation are also possible. For example, in a computer all-in-one machine, a system chip on the back side of the liquid crystal display screen can be used as a heating device, when the all-in-one machine starts to work, the system chip can generate heat when working, and the generated heat is conducted to the liquid crystal display screen so as to improve the working temperature of the liquid crystal display screen. As for the selection of the heating device for improving the operating temperature of the target device, the selection of the heating device dedicated for heating or the selection of the device capable of performing the heating function during operation may be determined according to the position of the target device in the electronic apparatus. For example, in order to improve the operating temperature of the liquid crystal display screen in the integrated flat panel device such as a tablet computer, a television, etc., a device (a heating display card or a system chip, etc.) which can perform a heating function during operation may be selected. In the electronic equipment such as a notebook computer or a desktop computer, especially in a system in which a plurality of liquid crystal display screens are distributed and a main control computer for controlling the plurality of liquid crystal display screens, a special heating device can be selected for improving the working temperature of the liquid crystal display screen because the main control computer or the electronic equipment is far away from the liquid crystal display screen. The number of the heating devices is not limited, and may be a plurality of heating devices, or may be one heating device, and may be selected according to the target device.
For example, when the environmental temperature of the electronic device is lower than minus 40 degrees, the heating device is continuously controlled to operate, and the operating heating device can improve the operating temperature of the target device. When the target device starts to work, the heating device starts to heat the target device, so that the target device is still in a heating state after being in a working state, and the target device can work in a preset temperature range.
After the target device is in a working state, if the target device is not heated, the heat generation amount of the target device is not enough to enable the target device to work in a preset temperature range, and if the target device is in the heating state, the target device can work in the preset temperature range, so that the working effect of the target device is good.
An electronic apparatus such as a notebook includes a first body having a target device, a second body having a non-target device that can continuously generate heat, and a connecting device connecting the first body and the second body. When the working temperature of the target device needs to be improved, due to the space between the first body and the second body, the heat output by the non-target device included in the second body can be conducted to the target device through a heat transfer device such as a heat pipe, for example, the heat generated when the display card included in the second body works can be conducted to the target device, a separate heating device can be arranged near the target device, and the heat generated by the heating device can be conducted to the target device, for example, the heat generated by the heating device attached to the target device or close to the target device can be conducted to the target device. The timing in which the heating device provided separately to the target device attachment is turned on may be determined according to the actual situation.
In some embodiments, before continuously controlling the operation of the heating device, the method further comprises:
collecting environmental temperature data;
and if the environmental temperature data meets the preset condition, controlling the heating device to work before the target device is in a working state, so that the target device can be heated before working.
For example, the ambient temperature data of the environment where the liquid crystal display screen is located is acquired, and if the ambient temperature data comprises a numerical value lower than 40 degrees, the heating device is controlled to work to enable the liquid crystal display screen to be heated before being in a working state, so that when the liquid crystal display screen starts to work, the working temperature of the liquid crystal display screen is not low, and the display effect is good.
Optionally, the ambient temperature data satisfies a predetermined condition, including: the ambient temperature data is lower than a first preset temperature. The first preset temperature may be dependent on the target device.
The number of the heating devices is multiple, the heating devices comprise devices capable of playing a heating role during working and special heating devices, the special heating devices can be started before the target device is in a working state, and the special heating devices can be closed after the target device is in the working state, and the working temperature of the target device is improved by utilizing the devices capable of playing the heating role during working. Or, after the target device is in the working state, a special heating device can be kept on, and the device which can play a heating role in working is utilized to improve the working temperature of the target device. For example, before the liquid crystal display of the tablet computer is in an operating state, a heating film arranged in the liquid crystal display is turned on, and after the liquid crystal display is in the operating state, the operating temperature of the liquid crystal display is improved by the heating film and a display card which generates heat.
In some embodiments, continuously controlling operation of the heating device comprises:
operating the heating device at a first time with a first parameter;
operating the heating device at a second time with a second parameter;
wherein the temperature generated by the heating device is different according to different parameters.
The heating device works with different parameters, and the temperatures generated by the heating device are different, so that the heating device can dynamically improve the working temperature of the target device in a working state.
In some embodiments, the heating device, after operating at the first parameter, comprises:
detecting power consumption of the electronic device;
at a second time, the heating device is switched to operate at a second parameter based on the power consumption of the electronic device and the power rating of the electronic device.
Depending on the power consumption of the electronic device, the heating device may be controlled to operate with corresponding parameters such that the heating device operates with parameters matching the power consumption of the electronic device. The parameters of the heating device can be dynamically adjusted according to the power consumption of the electronic equipment, so that the working temperature of the target device can be improved, and the target device can work in a preset temperature range.
In some embodiments, the power consumption of the electronic device comprises system power consumption and heating power, the first parameter comprises a first heating power, and the second parameter comprises a second heating power;
at a first moment, the electronic equipment generates first system power consumption;
at a second moment, the electronic equipment generates second system power consumption;
the first system power consumption is larger than the second system power consumption, and the first heating power is larger than the second heating power;
the first system power consumption is less than the second system power consumption, and the first heating power is less than the second heating power.
After the electronic device is turned on, the system power consumption of the electronic device is always present, and the heating power of the heating device can be adjusted, for example, the heating device is enabled to work at a larger heating power or the heating device is enabled to work at a smaller heating power or the heating device is turned off. However, the heating power of the heating device cannot cause the power consumption of the electronic equipment to exceed the rated power of the electronic equipment, otherwise the electronic equipment starts automatic protection and turns off the electronic equipment. The heating power of the heating device is balanced with the power consumption of the system, so that the power consumption of the electronic equipment is kept in a dynamic balance range, and the target device can work in a preset temperature range as soon as possible on the premise of ensuring the normal work of the system.
At a first moment, the electronic equipment generates first system power consumption, the heating device works with first heating power, at a second moment, the electronic equipment generates second system power consumption, the heating device works with second heating power, the first system power consumption is larger than the second system power consumption, the first heating power is larger than the second heating power, the first system power consumption is smaller than the second system power consumption, the first heating power is smaller than the second heating power, the first system power consumption is matched with the first heating power, the second system power consumption is matched with the second heating power, the heating power of the heating device is dynamically adjusted according to the system power consumption, the heating device works with the heating power as large as possible, and therefore the target device can quickly reach a preset temperature range.
In some embodiments, at a first time, the first heating power is adjusted to a difference between the rated power and the first system power consumption; and at the second moment, adjusting the second heating power to be the difference value between the rated power and the second system power consumption. Thus, the power consumption of the first system power consumption and the first heating power does not exceed the rated power of the system, the power consumption of the second system power consumption and the second heating power does not exceed the rated power of the system, and the heating device is operated with the heating power as large as possible.
In some embodiments, at a first time, the power consumption of the electronic device is a first power consumption, the heating device is adjusted to operate at a first heating power, and the first heating power is a difference value between a rated power of the electronic device and the first power consumption; and at the second moment, the power consumption of the electronic equipment is second power consumption, the heating device is adjusted to work at second heating power, and the second heating power is the difference value between the rated power of the electronic equipment and the second power consumption.
In some embodiments, the temperatures generated by the heating devices are different, including:
the temperature generated by the heating device is made different by adjusting the voltage or current.
For example, the heating power of the heating film is varied by adjusting the voltage or current of the heating film. The voltage of the electric heating film is increased, the heating power is increased, the voltage of the electric heating film is reduced, and the heating power is reduced. The heating power of the heating film is adjusted by increasing or decreasing the voltage of the electric heating film. The current of electric heat membrane risees, and heating power risees, and the current of electric heat membrane reduces, and heating power reduces. The heating power of the heating film is adjusted by increasing or decreasing the current of the electric heating film.
In some embodiments, to prevent the system of the electronic device from failing to work properly, the temperature control method further includes:
and controlling the heating device to stop working in response to the power consumption of the electronic equipment being larger than the rated power of the electronic equipment.
In some embodiments, the temperature control method may further include: detecting the temperature of the target device; and controlling the heating device to stop working in response to the temperature of the target device being greater than the second preset temperature. And when the temperature of the target device is higher than a second preset temperature, controlling the heating device to stop working so that the target device works in a preset temperature range.
As shown in fig. 2, an embodiment of the present application further discloses an electronic device, including:
a target device 1;
a heating device 2 provided corresponding to the target device 1 and configured to improve an operating temperature of the target device 1 in an operating state;
a temperature detection device 3 configured to detect an ambient temperature in which the electronic apparatus is located;
a control device 4 configured to continuously control the operation of the heating device 2 if the ambient temperature satisfies a predetermined condition; after the target device 1 is in the working state, the target device is still in the heating state, so that the target device can work in the preset temperature range.
The target device 1 may be a storage device, a display device, a processing device, or the like. When the environmental temperature of the electronic equipment meets the preset conditions, the target device 1 cannot work within the preset temperature range, namely, the target device 1 cannot work normally, the target device 1 can work within the preset temperature range by continuously controlling the heating device 2 to work, for example, the storage equipment can work within the preset temperature range of high-speed storage data, the display equipment can work within the preset temperature range with good display effect, and the processing equipment can work within the preset temperature range of high-speed processing data.
The material for manufacturing the target device 1 includes a specific material having a specific activation temperature, and when the ambient temperature does not coincide with the activation temperature of the specific material included in the material for manufacturing the target device 1, the target device 1 does not work well. If the ambient temperature is lower than the active temperature of the specific material, the temperature of the target device 1 needs to be raised to operate the specific material at the active temperature, and if the ambient temperature is higher than the active temperature of the specific material, the temperature of the target device 1 needs to be lowered to operate the specific material at the active temperature. In the following embodiments, the temperature rise of the target device 1 will be described as an example. In some embodiments, when the ambient temperature is lower than the active temperature of the specific material of the target device 1, the heating device 2 is continuously controlled to heat the target device 1 so that the specific material of the target device 1 operates at the active temperature. For example, when the temperature is higher than minus 40 ℃, the activity of the liquid crystal material of the liquid crystal display screen can be ensured, so that when the environmental temperature is lower than minus 40 ℃, the display of the liquid crystal display screen is not good, the liquid crystal display screen is heated by continuously controlling the heating device 2 to work at the active temperature, and the display effect of the liquid crystal display screen is better.
The heating device 2 is disposed corresponding to the target device 1, and when the heating device 2 operates, the operating temperature of the target device 1 can be improved. When the heating device 2 improves the operating temperature of the target device 1, the target device 1 may be directly heated, or the operating temperature of the target device 1 may be indirectly improved. For example, the heating device 2 is a heating film, the target device 1 is a liquid crystal display, the heating film is attached to the inner side of the liquid crystal display, when the heating film generates heat through resistance, the heating film can directly improve the temperature of the liquid crystal display, and the liquid crystal display can improve the working temperature of the liquid crystal display by absorbing the heat conducted by the heating film. For example, the heating device 2 is an electromagnetic heating heater, the target device 1 is a liquid crystal display, the heater is arranged near the liquid crystal display, after the heater starts to work, heat can be conducted to the liquid crystal display through air around the heater, and the liquid crystal display absorbs the heat conducted by the air through indirectly improving the temperature of the liquid crystal display, so that the working temperature of the liquid crystal display can be improved. Wherein the heating film or heater as the heating device 2 dedicated to heating can achieve the purpose of improving the operating temperature of the target device 1. In addition, devices that can function as a heater during operation are also possible. For example, in a computer-integrated machine, the system chip on the back side of the liquid crystal display screen can be used as the heating device 2, when the integrated machine starts to work, the system chip can generate heat when working, and the generated heat is conducted to the liquid crystal display screen, so that the working temperature of the liquid crystal display screen is improved. As for the selection of the heating device 2 for improving the operating temperature of the target device 1, whether the heating device 2 dedicated for heating or the device capable of performing the heating operation is selected may be determined according to the position of the target device 1 in the electronic apparatus. For example, in order to improve the operating temperature of the liquid crystal display screen in the integrated flat panel device such as a tablet computer, a television, etc., a device (a heating display card or a system chip, etc.) which can perform a heating function during operation may be selected. In the electronic device such as a notebook computer or a desktop computer, especially in a system in which a plurality of liquid crystal display screens are distributed and a main control computer for controlling the plurality of liquid crystal display screens, since the main control computer or the electronic device has a longer distance from the liquid crystal display screens, a special heating device 2 can be selected for improving the working temperature of the liquid crystal display screens. The number of the heating devices 2 is not limited, and may be plural or one, and may be selected according to the target device 1.
For example, when the environmental temperature of the electronic device is lower than minus 40 degrees, the operation of the heating device 2 is continuously controlled, and the operating heating device 2 can improve the operating temperature of the target device 1. When the target device 1 starts to work, the heating device 2 starts to heat the target device 1, so that the target device 1 is still in a heating state after being in a working state, and can work in a preset temperature range.
After the target device 1 is in the working state, if the target device 1 is not heated, the heat generation amount of the target device 1 is not enough to enable the target device 1 to work in the preset temperature range, and if the target device 1 is in the heating state, the target device 1 can work in the preset temperature range, so that the working effect of the target device 1 is good.
An electronic apparatus such as a notebook includes a first body having a target device 1, a second body having a non-target device that can continuously generate heat, and a connecting device connecting the first body and the second body. When the working temperature of the target device 1 needs to be improved, due to the space between the first body and the second body, the heat output by the non-target device included in the second body can be conducted to the target device 1 through a heat transfer device such as a heat pipe, for example, the heat generated when the display card included in the second body works can be conducted to the target device 1, a separate heating device 2 can be arranged near the target device, and the heat generated by the heating device can be conducted to the target device 1, for example, the heat generated by the heating device attached to the target device 1 or close to the target device 1 can be conducted to the target device 1. The timing in which the heating device 2 provided separately to the target device attachment is turned on may be determined according to actual circumstances.
In some embodiments, the electronic device further comprises:
the control device 4 is configured to control the operation of the heating device 2 before the target device 1 is in an operation state if the ambient temperature satisfies a predetermined condition before continuously controlling the operation of the heating device 2 so that the target device 1 can be heated before the operation.
For example, the ambient temperature data of the environment where the liquid crystal display is located is acquired, and if the ambient temperature data includes a numerical value lower than 40 degrees, the heating device 2 is controlled to work so that the liquid crystal display is heated before being in a working state, so that when the liquid crystal display starts to work, the working temperature of the liquid crystal display cannot be very low, and the display effect is good.
Optionally, the ambient temperature data satisfies a predetermined condition, including: the ambient temperature data is lower than a first preset temperature. The first preset temperature may be determined according to the target device 1.
The number of the heating devices 2 is multiple, the heating devices 2 comprise devices capable of heating during working and special heating devices, the special heating devices 2 can be started before the target device 1 is in a working state, and the special heating devices 2 can be closed after the target device 1 is in the working state, and the working temperature of the target device 1 is improved by using the devices capable of heating during working. Alternatively, the target device 1 may be kept on after it is in operation, and the device that can perform a heating function during operation may be used to improve the operating temperature of the target device. For example, before the liquid crystal display of the tablet computer is in an operating state, a heating film arranged in the liquid crystal display is turned on, and after the liquid crystal display is in the operating state, the operating temperature of the liquid crystal display is improved by the heating film and a display card which generates heat.
In some embodiments, the control device 4 is configured to:
controlling the heating device 2 to operate with a first parameter at a first time;
controlling the heating device 2 to operate with the second parameter at the second moment;
wherein the temperature generated by the heating device 2 is different for different parameters.
The heating device 2 operates with different parameters and the temperature generated by the heating device 2 is different, so that the heating device 2 can dynamically improve the operating temperature of the target device 1 in an operating state.
In some embodiments, the electronic device further comprises:
a power consumption detection device 5 configured to detect power consumption of the electronic apparatus;
the control means 4 are configured to switch the heating means 2 to operate at the second parameter at the second moment in time depending on the power consumption of the electronic device and the power rating of the electronic device.
Depending on the power consumption of the electronic device, the heating device 2 may be controlled to operate with corresponding parameters, such that the heating device 2 operates with parameters matching the power consumption of the electronic device. The parameters of the heating device 2 can be dynamically adjusted according to the power consumption of the electronic device, so that the working temperature of the target device 1 can be improved, and the target device 1 can work in a preset temperature range.
In some embodiments, the power consumption of the electronic device comprises system power consumption and heating power, the first parameter comprises a first heating power, and the second parameter comprises a second heating power;
the power consumption detection device is configured to detect a first system power consumption generated by the electronic device at a first time and detect a second system power consumption generated by the electronic device at a second time;
the control device 4 is configured to control the first heating power of the heating device 2 to be greater than the second heating power when the first system power consumption is greater than the second system power consumption, and to control the first heating power of the heating device 2 to be less than the second heating power when the first system power consumption is less than the second system power consumption.
After the electronic device is turned on, the system power consumption of the electronic device is always present, and the heating power of the heating device 2 can be adjusted, for example, to make the heating device 2 operate at a higher heating power or to make the heating device 2 operate at a lower heating power or to turn off the heating device 2. However, the heating power of the heating device 2 cannot make the power consumption of the electronic apparatus exceed the rated power of the electronic apparatus, otherwise the electronic apparatus starts the automatic protection to turn off the electronic apparatus. The heating power of the heating device 2 is balanced with the power consumption of the system, so that the power consumption of the electronic equipment is kept in a dynamic balance range, and the target device 1 can work in a preset temperature range as soon as possible on the premise of ensuring the normal work of the system.
At a first moment, the electronic equipment generates first system power consumption, the heating device 2 works with first heating power, at a second moment, the electronic equipment generates second system power consumption, the heating device 2 works with second heating power, the first system power consumption is larger than the second system power consumption, the first heating power is larger than the second heating power, the first system power consumption is smaller than the second system power consumption, the first heating power is smaller than the second heating power, the first system power consumption is matched with the first heating power, the second system power consumption is matched with the second heating power, the heating power of the heating device is dynamically adjusted according to the system power consumption, the heating device 2 works with the heating power as large as possible, and the target device 1 can quickly reach a preset temperature range.
In some embodiments, the control device 4 is configured to:
at a first moment, adjusting the first heating power to be a difference value between the rated power and the first system power consumption; and at the second moment, adjusting the second heating power to be the difference value between the rated power and the second system power consumption. Thus, the power consumption of the first system power consumption and the first heating power does not exceed the rated power of the system, the power consumption of the second system power consumption and the second heating power does not exceed the rated power of the system, and the heating device 2 is operated with as large heating power as possible.
In some embodiments, the control device 4 is configured to:
at a first moment, the power consumption of the electronic equipment is first power consumption, the heating device 2 is adjusted to work at first heating power, and the first heating power is the difference value between the rated power of the electronic equipment and the first power consumption; at the second moment, the power consumption of the electronic device is the second power consumption, the heating device 2 is adjusted to work with the second heating power, and the second heating power is the difference value between the rated power of the electronic device and the second power consumption.
In some embodiments, the control device 4 is configured to vary the temperature generated by the heating device 2 by adjusting the voltage or current.
For example, the heating power of the heating film is varied by adjusting the voltage or current of the heating film. The voltage of the electric heating film is increased, the heating power is increased, the voltage of the electric heating film is reduced, and the heating power is reduced. The heating power of the heating film is adjusted by increasing or decreasing the voltage of the electric heating film. The current of electric heat membrane risees, and heating power risees, and the current of electric heat membrane reduces, and heating power reduces. The heating power of the heating film is adjusted by increasing or decreasing the current of the electric heating film.
In some embodiments, to prevent the system of the electronic device from not functioning properly, the control device 4 is configured to control the heating device 2 to stop functioning in response to the power consumption of the electronic device being greater than the rated power of the electronic device.
In some embodiments, the temperature detection device 3 is configured to detect the temperature of the target device 1; the control device 4 is configured to control the heating device 2 to stop operating in response to the temperature of the target device 1 being greater than a second preset temperature. The target device 1 cannot work at a higher temperature, and when the temperature of the target device 1 is higher than a second preset temperature, the heating device 2 is controlled to stop working, so that the target device 1 works in a preset temperature range.
In one embodiment, as shown in fig. 3, the electronic device includes an EC (embedded controller), a power consumption detection module, an ambient temperature sensor, a liquid crystal panel temperature sensor, a heating film power control module, a heating film, and a liquid crystal panel, wherein the heating film and the liquid crystal panel temperature sensor are disposed on the liquid crystal panel, the power consumption detection module is configured to detect power consumption of the electronic device, the ambient temperature sensor is configured to detect an ambient temperature, and the liquid crystal panel temperature sensor is configured to detect a liquid crystal panel temperature. When the environment temperature sensor detects the environment temperature, the environment temperature data is transmitted to the EC, the EC judges that the environment temperature data meets the preset condition, the low-temperature heating function is determined to be started, and voltage or current is applied to the heating film through the heating film power control module to enable the heating film to work. The power consumption detection module transmits power consumption data of the electronic equipment to the EC, the EC dynamically adjusts heating power parameters which need to be transmitted to the heating film power control module according to the power consumption data of the electronic equipment and rated power of the electronic equipment, and the heating film power control module applies voltage or current to the heating film according to the heating power parameters. Specifically, the EC may adjust the heating power parameter to a difference between a rated power of the electronic device and power consumption data of the electronic device, so that the heating film can operate at as large a heating power as possible and the electronic device is not automatically protected by exceeding the rated power (an adaptor of the electronic device stops supplying power). The liquid crystal screen temperature sensor transmits liquid crystal screen temperature data to the EC, the EC judges whether the liquid crystal screen works in a preset temperature range or not according to the liquid crystal screen temperature data, if the liquid crystal screen temperature data exceeds a second preset temperature, the EC sends a signal for closing the heating film to the heating film power control module, and the heating film power control module stops applying voltage or current to the heating film according to the signal. The power consumption detection module transmits power consumption data of the electronic equipment to the EC, the EC responds that the power consumption data is larger than rated power, sends a signal for closing the heating film to the heating film power control module, and the heating film power control module stops applying voltage or current to the heating film according to the signal.
In one embodiment, as shown in FIG. 4, the electronic device includes an EC, a DC/DC (voltage conversion circuit), a heating film, two error comparators. Wherein, the heating film is attached on the liquid crystal screen, and a liquid crystal screen temperature sensor (not shown in the figure) is arranged at the heating film. An ambient temperature sensor (not shown) is provided at the EC. When the environment temperature sensor detects the environment temperature, the environment temperature data is transmitted to the EC, the EC judges that the environment temperature data meets the preset condition, the low-temperature heating function is determined to be started, and the EC controls the DC/DC to apply voltage to the heating film so as to enable the heating film to work. The power consumption detection module (not shown in the figure) transmits the power consumption data of the electronic equipment to the EC, the EC dynamically adjusts the voltage parameters needing to be transmitted to the DC/DC according to the power consumption data of the electronic equipment and the rated power of the electronic equipment, and the DC/DC applies voltage to the heating film according to the voltage parameters.
Among them, fig. 5 to 7 show circuit configuration diagrams of the DC/DC, the heating film, and the liquid crystal panel temperature sensor. The heating power of the heating film is
Wherein V0R is the heating film equivalent resistance. Thermistor R as liquid crystal screen temperature sensortFor detecting the temperature of the heated part, RtThe resistance of the resistor varies with temperature. VaVoltage of point and RtAnd R1The relationship of (1) is: va＝Vcc×R1÷(Rt+R1) Thus, when R istThe resistance of the resistor changes with temperature, resulting in VaAnd also changes. Error comparator passes comparison VaAnd VrefThe difference between them to adjust the voltage V0The adjustment strategy is as follows: when the temperature is lower, VaLess than or greater than VrefThe error comparator outputs a signal to the controller to make V0Raising, providing heating power to raise the temperature of the target device; when the temperature rises to a certain value, VaIs equal to VrefThe error comparator outputs a signal to the controller to make V0And is kept stable, thereby keeping the temperature stable.
EC controls V output to DC/DCrefTo control the voltage to heat the film.
As shown in fig. 4, Iadp is the output current of the adapter, and it can be seen from the figure that Iadp is Isys + Ihot, where Isys is the system current and Ihot is the heating current. When Isys increases, Iadp also increases, when Iadp is larger than the current reference value, the error comparator feeds the result back to the EC, and the EC controls the DC/DC to close the heating function according to the feedback, so that the adapter can be effectively protected from automatic protection due to overcurrent. Similarly, the liquid crystal display temperature sensor can also feed detected liquid crystal display temperature data (the detected temperature shown in the figure) back to the error comparator, when the liquid crystal display temperature data is larger than the temperature reference value, the error comparator can feed the result back to the EC, and the EC controls the DC/DC to close the heating function according to the feedback, so that the liquid crystal display can be effectively protected from damaging hardware due to overhigh temperature. The heating function is turned off through the DC/DC, the response speed is high, and the requirement of the adapter on dynamic load change can be met.
The above embodiments are only exemplary embodiments of the present application, and are not intended to limit the present application, and the protection scope of the present application is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present application and such modifications and equivalents should also be considered to be within the scope of the present application.
Claims (10)
1. A temperature control method is applied to electronic equipment and comprises the following steps:
if the environmental temperature of the electronic equipment meets the preset condition, the heating device is continuously controlled to work, so that the target device is still in a heating state after being in a working state, and the target device can work in a preset temperature range;
the heating device is arranged corresponding to the target device, the heating device can improve the working temperature of the target device in a working state, working parameters of the heating device can be dynamically adjusted according to the system power consumption of the electronic equipment to adjust the working temperature, the working parameters comprise heating power, and the heating power is the difference value between the rated power of the electronic equipment and the system power consumption.
2. The temperature control method of claim 1, wherein prior to operating the continuous control heating means further comprises:
collecting environmental temperature data;
and if the environmental temperature data meets the preset condition, controlling the heating device to work before the target device is in a working state, so that the target device can be heated before working.
3. The method of claim 1, wherein the continuously controlling operation of the heating device comprises:
operating the heating device at a first time with a first parameter;
operating the heating device at a second time with a second parameter;
wherein, the parameters are different, and the temperature generated by the heating device is different.
4. The method of claim 3, wherein the heating device, after operating at the first parameter, comprises:
detecting power consumption of the electronic device;
and at the second moment, switching the heating device to work with the second parameter according to the power consumption of the electronic equipment and the rated power of the electronic equipment.
5. The method of claim 3, wherein,
the first parameter comprises a first heating power and the second parameter comprises a second heating power;
at the first moment, the electronic equipment generates first system power consumption;
generating a second system power consumption by the electronic device at the second moment;
the first system power consumption is larger than the second system power consumption, and the first heating power is larger than the second heating power;
the first system power consumption is less than the second system power consumption, and the first heating power is less than the second heating power;
wherein at the first time, the first heating power is adjusted to a difference between the rated power and the first system power consumption; and at the second moment, adjusting the second heating power to be the difference value between the rated power and the second system power consumption.
6. The method of claim 3, wherein the temperatures generated by the heating devices are different, comprising:
the temperature generated by the heating device is made different by adjusting the voltage or current.
7. The method of claim 1, wherein the heating device is continuously controlled to operate if the temperature of the environment in which the electronic device is located meets a predetermined condition; make the target device in operating condition after, still be in the heating state to can work at preset temperature range, include:
when the environment temperature is lower than the active temperature of the material of the target device, the heating device is continuously controlled to heat the target device so as to enable the target device to work at the active temperature.
8. The method of claim 4, wherein the method further comprises:
and controlling the heating device to stop working in response to the power consumption of the electronic equipment being larger than the rated power of the electronic equipment.
9. An electronic device, comprising:
a target device;
a heating device, which is arranged corresponding to the target device and is configured to improve the working temperature of the target device in a working state, wherein working parameters of the heating device can be dynamically adjusted according to the system power consumption of the electronic equipment to adjust the working temperature, the working parameters comprise heating power, and the heating power isOf the electronic equipmentA difference between a rated power and the system power consumption;
a temperature detection device configured to detect an ambient temperature in which the electronic apparatus is located;
a control device configured to continuously control the operation of the heating device if the ambient temperature satisfies a predetermined condition; and after the target device is in the working state, the target device is still in the heating state, so that the target device can work in a preset temperature range.
10. The electronic device of claim 9,
the control device is configured to: operating the heating device at a first time with a first parameter; operating the heating device at a second time with a second parameter; wherein, the parameters are different, and the temperatures generated by the heating devices are different;
wherein the electronic device further comprises:
a power consumption detecting device configured to detect power consumption of the electronic apparatus;
the control device is configured to switch the heating device to operate at the second parameter at the second time based on the power consumption of the electronic device and the rated power of the electronic device.
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| CN109710003A (en) * | 2018-12-26 | 2019-05-03 | 联想(北京)有限公司 | Temprature control method and system |
| CN111552333A (en) * | 2020-06-16 | 2020-08-18 | Oppo广东移动通信有限公司 | Temperature control system, temperature control method, electronic device, and storage medium |
| CN115729277A (en) * | 2021-08-31 | 2023-03-03 | 中兴通讯股份有限公司 | Temperature control method, system, terminal and computer storage medium |
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